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The Circus Maximus still stands as the largest entertainment venue ever constructed in human history.
The Circus Maximus in Rome, Italy, a historic site that was once the largest stadium in the ancient world. located in the valley between the Aventine and Palatine hills.
It is widely accepted that the Circus Maximus in Rome is the largest entertainment venue ever constructed in human history, designed for chariot racing with an estimated capacity of 150,000 to 250,000 spectators. It was far larger than the Colosseum, with a track over 600 meters long and 140–150 meters wide.